Spring-type rail mount for track system

Abstract

A rail mount secures a longitudinally extending rail having a foot to a sleeper of a track system. The mount has a rail base plate on the sleeper underneath the rail foot and unitarily formed with a pair of upwardly projecting holders transversely flanking the rail and each formed with at least one vertically throughgoing bore. Respective anchor bolts engaged vertically downward through the bores have heads bearing downward at least indirectly on the respective holders and are seated in the sleeper to hold the base plate down on the sleeper. Respective elastically deformable clips fitted to the holders below the respective anchor-bolt heads bear upwardly on the holders and downwardly on the rail foot to press the rail downwardly toward the sleeper.

1. A rail mount for securing a longitudinally extending rail having a foot to a sleeper of a track system, the mount comprising: a rail base plate on the sleeper underneath the rail foot of a one piece configuration formed unitarily with a pair of upwardly projecting holders transversely flanking the rail and each formed with at least one vertically throughgoing bore; respective anchor bolts engaged vertically downward through the bores, having heads bearing downward on the respective holders, and seated in the sleeper to hold the base plate down on the sleeper; and respective elastically deformable clips fitted to the holders below the respective anchor-bolt heads and bearing upwardly on the holders and downwardly on the rail foot to press the rail is downwardly toward the sleeper. 
     
     
       2. The rail mount according to  claim 1 , further comprising
 at least one intermediate insulation spacer that can be fitted in between the rail foot and the holders. 
 
     
     
       3. The rail mount according to  claim 1 , further comprising
 an elastic intermediate plate provided below the rail base plate and is prestressed by a prestress spacing while the anchor bolts are being screwed independently of the prestressing of the clips. 
 
     
     
       4. The rail mount according to  claim 3 , further comprising
 a compensating plate that can be inserted between the sleeper and the elastic intermediate plate. 
 
     
     
       5. The rail mount according to  claim 3 , further comprising
 a respective bushing in each of the bores of the anchor bolts and transferring the prestressing force to the elastic intermediate plate and/or the compensating plate while the anchor bolt are being screwed in according to the prestress spacing. 
 
     
     
       6. The rail mount according to  claim 3  wherein the prestress spacing is adjusted by a defined screw torque of the anchor bolts. 
     
     
       7. The rail mount according to  claim 3 , further comprising
 respective spring washers between screw heads of the anchor bolts and the respective holders. 
 
     
     
       8. The rail mount defined in  claim 1  wherein the sleeper is formed with a pair of transversely spaced abutment humps between which the base plate fits. 
     
     
       9. The rail mount defined in  claim 1 , further comprising
 respective spring washers engaged upwardly with heads of the anchor bolts and downwardly with the base plate. 
 
     
     
       10. The rail mount defined in  claim 1  wherein each clip is formed of a single piece of steel wire. 
     
     
       11. The rail mount defined in  claim 10 , wherein the bolts pass through the respective clips. 
     
     
       12. A rail mount for securing a longitudinally extending rail having a foot to a sleeper of a track system, the mount comprising:
 a rail base plate on the sleeper underneath the rail foot and unitarily formed with a pair of upwardly projecting holders transversely flanking the rail and each formed with at least one vertically throughgoing bore; 
 respective anchor bolts engaged vertically downward through the bores and seated in the sleeper to hold the base plate down on the sleeper; 
 respective elastically deformable clips bearing upwardly on the holders and downwardly on the rail foot to press the rail downwardly toward the sleeper; and 
 respective elastic lateral sliding inserts between the abutment humps and respective transverse ends of the rail base plate. 
 
     
     
       13. The rail mount according to  claim 12  wherein the elastic lateral sliding inserts engage with projecting feet in recesses of the sleeper or the abutment humps. 
     
     
       14. The rail mount according to  claim 12  wherein the elastic lateral sliding inserts are formed with grooves facing each other and into which outer edges of an elastic intermediate plate or a compensating plate engage. 
     
     
       15. The rail mount according to  claim 12  wherein the elastic lateral sliding inserts are formed on their upper ends remote from the sleeper with shoulders absorbing the forces longitudinally of the rail from the rail base plate and transferring them to the sleeper. 
     
     
       16. The rail mount according to  claim 12  wherein the lateral sliding inserts are provided with at least one engagement projection on their outer edges facing toward the abutment humps of the sleeper. 
     
     
       17. A rail mount for securing a longitudinally extending rail having a foot to a track-system sleeper having a pair of transversely spaced abutment humps, the mount comprising:
 a rail base plate between the humps, on the sleeper, underneath the rail foot, and unitarily formed with a pair of upwardly projecting holders transversely flanking the rail and each formed with at least one vertically throughgoing bore; 
 respective anchor bolts engaged vertically downward through the bores and seated in the sleeper to hold the base plate down on the sleeper; 
 respective elastically deformable clips bearing upwardly on the holders and downwardly on the rail foot to press the rail downwardly toward the sleeper; 
 respective inserts between each of the humps and a respective outer edge of the base plate; and 
 transversely interengaging complementary formations on the inserts, the base-plate outer edges, and sleeper engaging transversely in each other and preventing relative longitudinal movement of the sleeper, inserts, and base plate. 
 
     
     
       18. The rail mount defined in  claim 17  wherein the formations include a downwardly projecting foot on the insert,
 an upwardly open recess on the sleeper receiving the foot, and 
 shoulders on the insert longitudinally flanking the base plate. 
 
     
     
       19. The rail mount defined in  claim 17 , further comprising
 at least one spacer or insulation plate between the base plate and the sleeper, the inserts each having a transversely inwardly open groove in which a respective outer end of the spacer or insulation plate is received.